1400557345 has 16 divisors (see below), whose sum is σ = 1835277120. Its totient is φ = 1017576000.

The previous prime is 1400557313. The next prime is 1400557363. The reversal of 1400557345 is 5437550041.

It is not a de Polignac number, because 1400557345 - 2⁵ = 1400557313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1400557345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45691 + ... + 69919.

It is an arithmetic number, because the mean of its divisors is an integer number (114704820).

Almost surely, 2^1400557345 is an apocalyptic number.

It is an amenable number.

1400557345 is a deficient number, since it is larger than the sum of its proper divisors (434719775).

1400557345 is a wasteful number, since it uses less digits than its factorization.

1400557345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25296.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 1400557345 is about 37424.0209624781. The cubic root of 1400557345 is about 1118.8373737405.

The spelling of 1400557345 in words is "one billion, four hundred million, five hundred fifty-seven thousand, three hundred forty-five".